DL 791 then LA 8181 at JFK
Phoenix → New York → São Paulo
Timetable, New York time
19:44DL 791 from Phoenix at the gate
19:10LA 8181 to São Paulo leaves the gate
23 h 26 apart on the timetable, overnight
LA 8181 leaves 23 h 26 after DL 791 arrives on the timetable: more than half a day, so not a connection we count.